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1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 754512323

Shape and cutting style on the report: Round brilliant

Certificate IGI 754512323

Diamond specifications and retailer prices

From $5,016 NZD
₹269,216 INR
As of November 1, 2026
Save $5,838 NZD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,853 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 754512323. Listed at 18 retailers as of October 30, 2026, with prices from $5,016 to $10,853, a $5,838 spread on the same certified stone. NZ Jewellers lists it at $10,853. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 754512323
Dimensions7.21 × 7.25 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.21 mm7.25 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 754512323
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $10,853 NZD|Low: $5,015 NZD|High: $11,197 NZD|Avg: $6,944 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 2$5,016 NZD
Retailer 16$5,358 NZD
Retailer 7$5,530 NZD
Retailer 5$5,614 NZD
Retailer 8$5,749 NZD
Retailer 18$6,107 NZD
Retailer 6$6,230 NZD
Retailer 13$6,230 NZD
Retailer 4$6,339 NZD
Retailer 14$6,469 NZD
Retailer 15$6,487 NZD
Retailer 11$6,738 NZD
Retailer 10$7,188 NZD
Retailer 3$7,222 NZD
Retailer 12$7,243 NZD
Retailer 9$9,556 NZD
Retailer 17$10,431 NZD
NZ Jewellers$10,853 NZD

36 data points across 18 retailers

18 retailers$5,016 NZD to $10,853 NZD

A
Cheapest Retailer
-
$5,016 NZD
₹269,216 INR
A
Retailer 2
-
$5,358 NZD
$3,020 USD
View
A
Retailer 3
-
$5,530 NZD
$3,117 USD
View
A
Retailer 4
-
$5,614 NZD
SGD 4,276 SGD
View
A
Retailer 5
-
$5,749 NZD
$3,240 USD
View
Final sale: no returns
A
Retailer 6
-
$6,107 NZD
$3,442 USD
View
A
Retailer 7
-
$6,230 NZD
$3,511 USD
View
A
Retailer 8
-
$6,230 NZD
$3,511 USD
View
A
Retailer 9
-
$6,339 NZD
$3,572 USD
View
A
Retailer 10
-
$6,469 NZD
$3,646 USD
View
A
Retailer 11
-
$6,487 NZD
$3,656 USD
View
A
Retailer 12
-
$6,738 NZD
£2,990 GBP
View
B+
Retailer 13
-
$7,188 NZD
$4,051 USD
View
A
Retailer 14
-
$7,222 NZD
£3,205 GBP
View
A
Retailer 15
-
$7,243 NZD
€3,888 EUR
View
B+
Retailer 16
-
$9,556 NZD
$5,386 USD
View
B+
Retailer 17
-
$10,431 NZD
£4,629 GBP
View
Most Expensive
B+
NZ Jewellers
00c94c50-0d12-4257-bd7e-735e84b4e8fe · Oct 30
$10,853 NZD
$6,117 USD
View
17 more retailers have this diamond
Prices start from $5,016 NZDSave up to $5,838 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Round
$5,016 NZD